题解 | #查询每个公司查看过的投递用户数#

select company_id,count(job) as cnt
from 
(
    select company_id,deliver_record.job_id as job
    from job_info,deliver_record
    where job_info.job_id = deliver_record.job_id
    and resume_if_checked = 1
)temp
group by company_id
order by company_id